Night Report 2014-12-11

Observers: Pierre-François Léget, Nicolas Chotard & Marine Ducrot

TAT: Nancy Elias-Rosa, Joe Polshaw, Stefan Taubenberger

Photometric. No sign of clouds all night and the seeing is consistently around 0.5".

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CALIBRATIONS:

- 19:00UT - In the control room. Weather looks good.

- 21:00UT - 1x PESSTO_bias & 1x PESSTO_calib

PRE-OBSERVATIONS:

- 23:45UT - Sunset

- 00:00UT - Skyflats: UVi

- 00:20UT - Focussing & image analysis

- 00:40UT - SPECTROSCOPIC STANDARD: VMA2. Seeing 0.6", Airmass 1.24

- 00:55UT - PHOT STD: PG0231 (UgBVRriz): Seeing 0.6", Airmass 1.25

SCIENCE-OBSERVATIONS:

- 01:10UT - ASASSN-14jb: Follow up, 2100s gm13 spectrum. Seeing 0.6", Airmass 1.6

- 01:55UT - OGLE-2014-SN-189: Classification. Seeing 0.5", Airmass 1.45.

- Took a spectrum but hard to classify with SNID.

- 02:20UT - OGLE-2013-SN-100: Photometry. 9x200s in each BV band. Seeing 0.5", Airmass 1.45

- 03:30UT - TPhE: Standar star. Photometry. Seeing 0.4", Airmass 1.5.

- 03:45UT - GD71: Standar star. Spectro. Seeing 0.6", Airmass 1.5.

- problem during the exposure which didn't start. Got a bit late at this point.

- Apparently because of some electric problem that they had during the day.

- 04:20UT - LSQ14gie: Classification. Seeing 0.5", Airmass 1.1.

- Bright target on the edge of a galaxy.

- Most likely a pre-maximum (-1/2 days) normal SN Ia according to SNID, with a redshift of 0.073

- 05:00UT - LSQ14gfb: Follow up spectro. Gm13. Seeing 0.4", Airmass 1.3.

- Same problem as earlier, starting the exposure a bit later than expected

- 07:30UT - ASASSN-14ko: Follow up. Photometry UBVRi, Seeing 0.4", Airmass 1.3

- 07:50UT - ASASSN-14ko: Follow up. Spectro gr11+gr16, Seeing 0.5", Airmass 1.5

POST-OBSERVATIONS:

- 08:50UT - RU 149: Photometric standard. UBVRigrz, Seeing 0.6", Airmass 1.4

- TOO LATE FOR - LTT3864: Spectroscopic standard

- 09:00UT: - Skyflats: BR

- 09:05UT - PESSTO_calib (dome flat + arcs only)

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SCIENCE-CONCLUSIONS:

- ASASSN-14jb: Spetro follow up

- OGLE-2014-SN-189: Classification. Not been able to classify it.

- OGLE-2013-SN-100: Photometry follow up

- LSQ14gie: Classification: Pre-maximum (-1/2 days) normal SN Ia according to SNID, with a redshift of 0.073

- LSQ14gfb: Spectro follow up

- ASASSN-14ko: Spectro+Photo follow up

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